CN107610540B - It registers and the energy conservation and environmental protection multimedia teaching platform of analysis system with intelligence - Google Patents

Abstract

It registers and the energy conservation and environmental protection multimedia teaching platform of analysis system with intelligence the invention discloses a kind of, including：Babinet is divided into first chamber and second chamber；Panel is set on the left of babinet, panel lower end by can around 0 90 degree of body pivot in a manner of be connected on babinet；In second chamber setting can the rectangle framework of Slideslip and chargeable first power supply outward, place liftable lifting box in rectangle framework；The first, second pull plate is arranged in box back；It is respectively provided with magnetic white board outside first, second pull plate；Idler wheel is arranged in babinet lower end；Lid comprising the first lid and the second lid；First groove is set outside the first lid, block is set in the first groove；Multimedia device；Intelligence system comprising fingerprint attendance system and analysis system；Present invention use can not be limited by the field；And fingerprint attendance pattern ensures to class rate；Analysis system targetedly teaches student according to student classroom performance, and the efficiency of classroom learning is greatly improved.

Description

It registers and the energy conservation and environmental protection multimedia teaching platform of analysis system with intelligence

Technical field

The present invention relates to multimedia teaching platform field more particularly to it is a kind of with intelligence register and analysis system it is energy saving Environmentally friendly multimedia teaching platform.

Background technology

Multimedia teaching is gradually applied by each universities and colleges with the continuous development of science and technology, would generally be used and be passed in teaching process The mode that system teaching and multimedia teaching combine is given lessons.The multimedia resource that school uses is generally fixed to specified religion Room, when student's upper multimedia course, need to go to specified classroom, are taking to classroom key and then are opening the multimedia dress It sets, process is relatively complicated, and the place that multimedia device uses is limited；Teacher generally using multimedia device when, when needing Frequently move towards dais, described with chalk on blackboard and tell about emphasis and elaboration, so as to student understand, whole process teacher is back and forth Walk about, and described with chalk, be required for consuming considerable muscle power, and be easy that attention of student is made not concentrate, wave The quality time on classroom is taken, it is to have to provide a kind of multimedia teaching platform not limited and optimized time in classroom by place very much It is necessary.

Invention content

It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.

It is a still further object of the present invention to provide it is a kind of with intelligence register and the energy conservation and environmental protection multimedia of analysis system religion Platform is learned, use can not be limited by the field；Utilize fingerprint attendance pattern, it is ensured that arrive class rate；Using analysis system according to Student classroom performance targetedly teaches student, and the efficiency of classroom learning is greatly improved.

In order to realize these purposes and other advantages according to the present invention, provides one kind and registering and analyze system with intelligence The energy conservation and environmental protection multimedia teaching platform of system, including：

First partition is arranged inside in babinet, and the babinet is divided into two independent units by the first partition, respectively For first chamber and the second chamber being arranged below the first chamber；Setting is with can be around described first in the first chamber The second partition that the mode of chamber bottom end rotation 0-45 degree connects, the second partition are located above the first partition；It is described Second partition top sets gradually the first display screen storage tank, wireless microphone storage tank and sets book-groove from left to right；Described first Rectangular cavity is formed between partition board and the second partition；First opening of first chamber front end setting；Second chamber The second opening and third opening is respectively set in room front end and left side；Panel is set on the left of the babinet, and the panel lower end is with can Mode around the body pivot 0-90 degree is connected on the babinet；Left side setting can be to the third in the second chamber The rectangle framework of open outer side sliding, the rectangle framework is interior to place lifting box；Lifting cassette bottom end four corners setting Hole, described hole is interior to be arranged lifting gear, so that the lifting box moves up and down；Right side setting can fill in the second chamber First power supply of electricity；The first pull plate and the second pull is arranged in the 4th opening of box back setting, the 4th opening Plate, first pull plate are connected to the 4th opening in a manner of it can be slid laterally along the 4th opening；It is described Second pull plate is connected to the first pull front edge of board in a manner of it can be slid laterally along first pull plate；Described first It is respectively provided with magnetic white board outside pull plate and the second pull plate；Idler wheel is arranged in the babinet lower end.

Lid comprising the first lid and the second lid for being symmetricly set on second opening；First lid Lower end is connected to first opening in a manner of it can be rotated around first open lower side, and the first lid outside is symmetrical First groove is set, block is set in first groove.

Multimedia device comprising the first display screen, second display screen, wireless microphone, projecting apparatus, keyboard, mouse and master Machine；First display screen is arranged in the first display screen storage tank；The second display screen is arranged on student's desktop, The second display screen is connected with first display screen, to switch the boundary of the second display screen and first display screen Face；The wireless microphone is arranged in the wireless microphone storage tank；Projecting apparatus setting is described on the lifting box top The chargeable second source of setting in projecting apparatus；The keyboard is arranged with mouse in the rectangular cavity；The host is set Set the right side in the second chamber.

Intelligence system comprising fingerprint attendance system and the analysis system being arranged in the second display screen；It is described Setting fingerprint checks module in fingerprint attendance system；The fingerprint verification module is connected with fingerprint database, the finger print data The finger print information of teachers and students in the school is stored in library；The analysis system include analysis module, voice collection device, recording apparatus and Data transmission device；The voice collection device and recording apparatus are connected with the data transmission device, the data transmission Device is connected with the analysis module, and the classroom performance to integrate student provides evaluation and suggests.

Preferably, further include locking device, the locking device is L-type locking device；The L-type locking device includes First bar and the second bar；First bar is fixed in the babinet top；Second bar around first bar end can turn Dynamic mode is connected to the panels outside, and the water of the parallel panel and vertical second bar is arranged in second bar end Flat bar.

Preferably, the block includes fixed part and movable part, and the fixed part is fixed in first groove, institute It states movable part and is connected to the fixed part lower end in a manner of it can be rotated around the fixed part, the movable part opposite side is respectively provided with Rubber pad.

Preferably, the distance of the upper end of the rectangle framework to the panel bottom end is the thickness of the panel.

Preferably, first lid, the second lid outside are respectively provided with the second groove, vertical on the outside of second groove To 0.5-1 centimetres of baffle of setting.

Preferably, book block board is arranged in book-groove for described set, the book block board be symmetricly set on it is described set below book-groove, institute It is telescopic acrylic board to state book block board.

Preferably, the distance between described first groove is more than the width of second opening.

The present invention includes at least following advantageous effect：

Babinet of the present invention is the rectangular box body of flat appearance under unused state, and the babinet lower end is arranged Idler wheel, the babinet easy to remove enumerate storage to the place needed convenient for multiple babinets；Second lid is opened Later, first lid is transferred to second lid top surface, first lid is supported with second lid, it is described Block prevents the side further out of second lid from moving, and is placed or the desk for describing with constituting；The length Square frame can pull out on the outside of the second chamber, can to constitute second with the panel of support decentralization to horizontality Desk；The second partition adjustable tilt angle watches the first display screen convenient for user or described sets the interior of book-groove Hold；The lifting box can be placed on the outside of the babinet, and the lifting gear can lift the lifting box to different height, from And the projecting apparatus is made to be placed in different height, it is conveniently adjusted the optimum position of projection, teacher can be by the rear end face of the babinet To viewer, because of chargeable second source built in the projecting apparatus, the projecting apparatus is made not limited by wire and plug, it can It is moved to the position of needs, then second pull plate and the first pull plate is pulled to side perspective plane to extend successively Product；In reprojection to the magnetic white board outside first pull plate and the second pull plate, the trouble of arrangement projection calico is eliminated； The box back is in open state simultaneously, and teacher is with student mutually as it can be seen that preferably being exchanged with student convenient for teacher；Always Describing for content can also be repeated in teacher on the magnetic white board, understand convenient for student, can also be thrown with the projecting apparatus Content on to the magnetic white board on the magnetic white board in conjunction with directly key content is marked, to improve learning efficiency.

First display screen, wireless microphone, keyboard, mouse and host are all placed on position easy to use, described Second display screen is connected with first display screen, and the interface of the two can mutually switch, and is convenient for the classroom interaction of teacher and student； Chargeable first power supply built in the babinet, keeps the energy-saving and environment-friendly multimedia teaching platform not limited by the field, expands Big use scope, has broken away from the pattern of fixed multi-media classroom, has made each classroom that can use described energy-saving and environment-friendly Multimedia teaching platform；It is projection arrangement that multi-functional, the described projecting apparatus of the babinet is combined with the magnetic white board, described The availability repeatedly of magnetic white board, the practicability that the babinet is not limited by place all embody the energy saving of the multimedia platform The effect of environmental protection.

The babinet is arranged in fixed multi-media classroom, starts the intelligence system, student is directly described second It registers on display screen, the fingerprint attendance system can identify the fingerprint registered according to the fingerprint database, to judge to learn Raw identity, prevent student attend class allograph to the problem of, ensure that class rate；The voice collection device record student upper class hour Language expression, the classroom behavior of recording apparatus record student, and the content of record is passed through into the data transmission device It is conveyed to the analysis module, the analysis module provides evaluation and suggest according to the classroom words and deeds of the student recorded；Such as On English Class, it is unskilled that the analysis module according to the information of record can analyze student which word, this word is pushed It is shown on the second display screen interface, and provides the analysis of this word correlated knowledge point；The energy-saving and environment-friendly multimedia Platform can not be limited by the field, and can connect intelligence system, ensures the enthusiasm and efficiency of student's study, reduces student and learns Unnecessary burden in habit, ensures efficient Learning atmosphere.

Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.

Description of the drawings

Fig. 1 is the structure chart after babinet of the present invention expansion；

Fig. 2 is structure chart when babinet of the present invention is not deployed；

First pull plate and the structure chart after the expansion of the second pull plate that Fig. 3 is box back of the present invention.

Specific implementation mode

Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text Word can be implemented according to this.

It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not discharged one or more The presence or addition of a other elements or combinations thereof.

As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a kind of registers and the more matchmakers of the energy conservation and environmental protection of analysis system with intelligence Body teaching platform, including：

Babinet 100, is arranged inside first partition 101, the first partition 101 by the babinet be divided into two it is independent Unit, respectively first chamber 102 and the second chamber 103 being arranged below the first chamber 102；The first chamber The second partition 104 that setting is connected in a manner of it can rotate 0-45 degree around 102 bottom end of the first chamber in 102, described second Partition board 104 is located at 101 top of the first partition；104 top of the second partition sets gradually the first display screen from left to right Storage tank 105, wireless microphone storage tank 106 and set book-groove 107；Shape between the first partition 101 and the second partition 104 Rectangularity cavity 108；The first opening 109 of 102 front end of first chamber setting；103 front end of the second chamber and left side The second opening 110 and third opening 111 is respectively set；The left side of the babinet 100 is arranged panel 112,112 lower end of the panel with The mode that 0-90 degree can be rotated around the babinet 100 is connected on the babinet 100；Left side setting in the second chamber 103 Can be to the rectangle framework 113 of the third 111 outer Slideslips of opening, the rectangle framework 113 is interior to place lifting box 114； Hole is arranged in 114 bottom end four corners of the lifting box, lifting gear is arranged in described hole, so that about the 114 lifting box Movement；Chargeable first power supply is arranged in right side in the second chamber 103；The 4th opening of 100 rear end of babinet setting 115, setting the first pull plate 116 and the second pull plate 117 at the 4th opening 115, first pull plate 116 is with can edge The mode slid laterally at 4th opening 115 is connected at the 4th opening 115；Second pull plate 117 is with can The mode slid laterally along first pull plate 116 is connected to 116 front end of the first pull plate；First pull plate 116 and second are respectively provided with magnetic white board 118 outside pull plate 117；Idler wheel 119 is arranged in 100 lower end of the babinet.

Lid 200 comprising the first lid 201 and the second lid 202 being symmetricly set at second opening 110； First lid, 201 lower end in a manner of first opening, 109 bottom edges rotation can be connected to first opening 109 Place, first lid, 201 outside are symmetrical arranged the first groove 203, block 204 are arranged in first groove 203.

Multimedia device 300 comprising the first display screen 301, second display screen, wireless microphone 302, projecting apparatus 303, key Disk, mouse and host；First display screen 301 is arranged in the first display screen storage tank 105；The second display screen Be arranged on student's desktop, the second display screen is connected with first display screen 301, with switch the second display screen and The interface of first display screen 301；The wireless microphone 302 is arranged in the wireless microphone storage tank 106；The projection The setting of instrument 303 chargeable second source of setting in 114 top of lifting box, the projecting apparatus 303；The keyboard and mouse Mark is arranged in the rectangular cavity 108；Host setting right side in the second chamber 103.

Intelligence system comprising fingerprint attendance system and the analysis system being arranged in the second display screen；It is described Setting fingerprint checks module in fingerprint attendance system；The fingerprint verification module is connected with fingerprint database, the finger print data The finger print information of teachers and students in the school is stored in library；The analysis system include analysis module, voice collection device, recording apparatus and Data transmission device；The voice collection device and recording apparatus are connected with the data transmission device, the data transmission Device is connected with the analysis module, and the classroom performance to integrate student provides evaluation and suggests.

In the above scheme, the babinet 100 is the rectangular box body of flat appearance under unused state, and the case Idler wheel 119 is arranged in 100 lower end of body, and the babinet 100 easy to remove is convenient for multiple 100 sieve of the babinet to the place of needs Row storage；After second lid 202 is opened, first lid 201 is transferred to 202 top surface of the second lid, with Second lid 202 supports first lid 201, the block 204 to prevent second lid 202 further out Side is moved, and is placed or the desk for describing with constituting；The rectangle framework 113 can pull out the second chamber 103 Outside, with the panel 112 of support decentralization to horizontality, to constitute second available desk；The second partition 104 Adjustable tilt angle watches the first display screen 301 or the content for setting book-groove 107 convenient for user；The lifting box 114 can be placed in 100 outside of the babinet, and the lifting gear can lift the lifting box 114 to different height, to make The projecting apparatus 303 is placed in different height, is conveniently adjusted the optimum position of projection, and teacher can be by the rear end of the babinet 100 Towards viewer, because of chargeable second source built in the projecting apparatus 303, make the projecting apparatus 303 not by wire and plug Limitation, be movable to the position of needs, then successively pull second pull plate, 117 and first pull plate 118 to side Projected area to extend；In reprojection to the magnetic white board 118 outside first pull plate, 116 and second pull plate 117, save The trouble of arrangement projection calico is gone；100 rear end of the babinet be in open state simultaneously, teacher it is mutual with student as it can be seen that It is preferably exchanged with student convenient for teacher；Describing for content can also be repeated in teacher on the magnetic white board 118, be convenient for Student understands, can also be combined directly described magnetic white being thrown to the content on the magnetic white board 118 with the projecting apparatus 303 Key content is marked on plate 118, to improve learning efficiency.

First display screen 301, wireless microphone 302, keyboard, mouse and host are all placed on position easy to use On, the second display screen is connected with first display screen 301, and the interface of the two can mutually switch, and is convenient for teacher and student Classroom interaction；Chargeable first power supply built in the babinet 100, make the energy-saving and environment-friendly multimedia teaching platform not by The limitation in place, expands use scope, has broken away from the pattern of fixed multi-media classroom, makes each classroom that can use institute State energy-saving and environment-friendly multimedia teaching platform；Multi-functional, the described projecting apparatus 303 of the babinet 100 and the magnetic white board 118 in conjunction with projection arrangement, the magnetic white board 118 availability repeatedly, the practicability that the babinet 100 is not limited by place All embody the energy-saving and environment-friendly effect of the multimedia platform.

The babinet is arranged in fixed multi-media classroom, starts the intelligence system, student is directly described second It registers on display screen, the fingerprint verification module in the fingerprint attendance system can be identified according to the fingerprint database registers Fingerprint, to judge the identity of student, prevent student attend class allograph to the problem of, ensure that class rate；The voice includes dress The language expression of record student upper class hour, the classroom behavior of the recording apparatus record student were set, and the content of record is passed through The data transmission device is conveyed to the analysis module, and the analysis module is provided according to the classroom words and deeds of the student recorded Evaluation and suggestion；Such as on English Class, it is not yet done that the analysis module according to the information of record can analyze student which word Practice, includes and providing the analysis of this word correlated knowledge point on the second display screen interface by the push of this word；The section Can the multimedia platform of environmental protection can not be limited by the field, and intelligence system can be connected, ensure student's study enthusiasm and Efficiency reduces unnecessary burden in student's study, ensures efficient Learning atmosphere.

Further include locking device 400 in one preferred embodiment, the locking device 400 is L-type locking device；The L-type Locking device 400 includes the first bar 401 and the second bar 402；First bar 401 is fixed in 100 top of the babinet；Described Two bars 402 are connected to 112 outside of the panel, second bar, 402 end in a manner of it can be rotated around 401 end of the first bar The horizon bar 403 of the parallel panel 112 and vertical second bar 402 is arranged in end.

In the above scheme, the panel 112 is fastened on 100 outside of the babinet by the L-type locking device 400, is prevented Only it falls, and when the panel 112 is put down, rotating second bar 402 makes 100 top of babinet described in its height；Fastening institute When stating panel 112, the second bar 402 of rotation makes 403 horizontality placed below of the horizon bar, the setting of the horizon bar 403 Fastening area can be increased, convenient for the more firm of fastening.

In one preferred embodiment, the block 204 includes fixed part 205 and movable part 206, and the fixed part 205 is affixed In first groove 203, the movable part 206 is connected to the fixation in a manner of it can be rotated around the fixed part 205 205 lower end of portion, 206 opposite side of the movable part are respectively provided with rubber pad.

In the above scheme, the movable part 206 is when first lid 201 is in vertical state, the movable part 206 are placed in first groove 203, when first lid 201 is in horizontality, 206 vertical institute of the movable part It states the first lid 201 and is placed in second lid, 202 outside；Because 206 opposite face of the movable part is in direct contact second lid The position that the rubber pad can prevent second lid, 202 outside from being contacted with the movable part 206 is arranged in the outside of body 202 It is worn, ensures the aesthetics of second lid 202.

In one preferred embodiment, the distance of upper end to 112 bottom end of the panel of the rectangle framework 113 is the face The thickness of plate 112.

In the above scheme, the setting of the upper end of the rectangle framework 113 to the distance of 112 bottom end of the panel ensures When the decentralization of the panel 112 is to horizontality, the bottom surface of the panel 112 is just placed in pull to 100 outside of the babinet Top surface in the rectangle framework 113, to ensure the stability of support.

In one preferred embodiment, first lid 201,202 outside of the second lid are respectively provided with the second groove 207, along institute State longitudinally disposed 0.5-1 centimetres of baffle 208 on the outside of the second groove 207.

In the above scheme, it when user needs to open first lid 201 and the second lid 202, places a digit into In second groove 207, and after being buckled in the baffle 208, it is pulled outwardly, that is, opens first lid, 201 and second lid 202；It is not only convenient and strength-saving, while also ensuring the planarization of 100 appearance of entire babinet, it avoids the babinet 100 and is carrying In unnecessary hook.

In one preferred embodiment, book block board 120 is arranged in described set in book-groove 107, the book block board 120 is with rotatable side Formula sets 107 lower section of book-groove described in being symmetricly set on, and the book block board 120 is telescopic acrylic board.

In the above scheme, the book block board 120 is rotated to the written position for suitably needing to suppress, further according to written Size so that the book block board 120 is retractable to suitable length, with ensure compacting stability；The book block board 120 is using sub- Gram force material, because of the attribute that acrylic board is transparent, the book block board 120 will not cover in writing word shadow when pressing book It rings and reads.

In one preferred embodiment, the distance between described first groove 203 is more than the width of second opening 110.

In the above scheme, the movable part in first groove 203 is for preventing second lid 202 from opening up outward It opens, to avoid the first lid 201 for being placed in second lid, 202 top from falling；The distance between described first groove 203 So that second lid 202 is played the role of support first lid 201, at the same also make second lid 202 it Between distance be people leg place comfortable width.

Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and legend shown and described herein.

Claims (7)

1. a kind of register and the energy conservation and environmental protection multimedia teaching platform of analysis system with intelligence, wherein including：

First partition is arranged inside in babinet, and the babinet is divided into two independent units by the first partition, and respectively One chamber and the second chamber being arranged below the first chamber；Setting is with can be around the first chamber in the first chamber The second partition that the mode of bottom end rotation 0-45 degree connects, the second partition are located above the first partition；Described second Partition board top sets gradually the first display screen storage tank, wireless microphone storage tank and sets book-groove from left to right；The first partition Rectangular cavity is formed between the second partition；First opening of first chamber front end setting；Before the second chamber The second opening and third opening is respectively set in end and left side；Panel is set on the left of the babinet, and the panel bottom end is with can be around institute The mode for stating body pivot 0-90 degree is connected on the babinet；Left side setting can be open to the third in the second chamber The rectangle framework of outer Slideslip, the rectangle framework is interior to place lifting box；Hole is arranged in lifting cassette bottom end four corners, Lifting gear is set in described hole, so that the lifting box moves up and down；Right side setting is chargeable in the second chamber First power supply；The first pull plate and the second pull plate, institute is arranged in the 4th opening of box back setting, the 4th opening It states the first pull plate and is connected to the 4th opening in a manner of it can be slid laterally along the 4th opening；Described second takes out Pulling plate is connected to the first pull front edge of board in a manner of it can be slid laterally along first pull plate；First pull plate It is respectively provided with magnetic white board outside with the second pull plate；Idler wheel is arranged in the babinet lower end；

Lid comprising the first lid and the second lid for being symmetricly set on second opening；First lid lower end It is connected to first opening in a manner of it can be rotated around first open lower side, is symmetrical arranged on the outside of first lid First groove, first groove is interior to be arranged block；

Multimedia device comprising the first display screen, second display screen, wireless microphone, projecting apparatus, keyboard, mouse and host；Institute The first display screen is stated to be arranged in the first display screen storage tank；The second display screen is arranged on student's desktop, described Second display screen is connected with first display screen, to switch the interface of the second display screen and first display screen；Institute Wireless microphone is stated to be arranged in the wireless microphone storage tank；The projecting apparatus is arranged in the lifting box top, the projection The chargeable second source of setting in instrument；The keyboard is arranged with mouse in the rectangular cavity；The host setting exists Right side in the second chamber；

Intelligence system comprising fingerprint attendance system and the analysis system being arranged in the second display screen；The fingerprint Setting fingerprint checks module in system of registering；The fingerprint verification module is connected with fingerprint database, in the fingerprint database It is stored with the finger print information of teachers and students in the school；The analysis system includes analysis module, voice collection device, recording apparatus and data Transmitting device；The voice collection device and recording apparatus are connected with the data transmission device, the data transmission device It is connected with the analysis module, the classroom performance to integrate student provides evaluation and suggests.

It registers with intelligence and the energy conservation and environmental protection multimedia teaching platform of analysis system 2. as described in claim 1, wherein also Including locking device, the locking device is L-type locking device；The L-type locking device includes the first bar and the second bar；It is described First bar is fixed in the babinet top；Second bar is connected to the face in a manner of it can be rotated around first bar end On the outside of plate, the horizon bar of the parallel panel and vertical second bar is arranged in second bar end.

It registers with intelligence and the energy conservation and environmental protection multimedia teaching platform of analysis system 3. as described in claim 1, wherein institute It includes fixed part and movable part to state block, and the fixed part is fixed in first groove, and the movable part is with can be around described The mode of fixed part rotation is connected to the fixed part lower end, and the movable part opposite side is respectively provided with rubber pad.

It registers with intelligence and the energy conservation and environmental protection multimedia teaching platform of analysis system 4. as described in claim 1, wherein institute The distance for stating upper end to the panel bottom end of rectangle framework is the thickness of the panel.

It registers with intelligence and the energy conservation and environmental protection multimedia teaching platform of analysis system 5. as described in claim 1, wherein institute State the first lid, the second lid outside is respectively provided with the second groove, longitudinally disposed 0.5-1 centimetres of the gear on the outside of second groove Plate.

It registers with intelligence and the energy conservation and environmental protection multimedia teaching platform of analysis system 6. as described in claim 1, wherein institute State to set and book block board be set in book-groove, the book block board be symmetricly set on it is described set below book-groove, the book block board is telescopic Acrylic board.

It registers with intelligence and the energy conservation and environmental protection multimedia teaching platform of analysis system 7. as described in claim 1, wherein institute State the width that the distance between first groove is more than second opening.